A stall at a high wing loading is very dangerous, and is deffinately something to worry about!
this very much depends on the situation, in MOST aircraft, if done at height and planned, it should NOT be a problem, but as said by others, if it is not something you have done before, try it with an instructor first.
And Dusty - you SHOULD have covered incipient spins for the PPL (but fully developed spins are not required).